MARK ADRAIN KIEFER (MD) – Colon & Rectal Surgery Physician, NPI 1992896567
Colon & Rectal Surgery Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
21 COLORECTAL SURGERY (PROCTOLOGY) in OK
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Provider Addresses for MARK ADRAIN KIEFER (MD)
East 19th Street, Yorktown, Tulsa, Tulsa County, Oklahoma, 74104, United States
TULSA, OK 741045416
Phone: (918) 748-7800
Fax: (918) 403-6349
Mailing address matches the actual address.
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
No Open Payments data available for this provider.
This can happen when there are no reportable CMS Open Payments records.
Medicare Enrollment & Revalidation
Source: CMS public data · Not endorsed by CMS ·
Educational use only—not medical, billing, or legal advice.
PECOS enrollment status
Participating (accepts Medicare assignment)
Enrollment effective: 2009-07-20
PECOS data refreshed: 2026-05-27
Medicare revalidation (CMS due date list)
Due date not assigned yet
CMS is tracking this Medicare enrollment for revalidation, but has not published a due date.
Enrollment records
1
Earliest due date
Not assigned (TBD)
CMS data updated
2026-06-01
Revalidation progress
- Medicare enrolled
- On CMS revalidation list
- Due date assigned
- Revalidate in PECOS
CMS enrollment records
| Enrollment ID | Type | Specialty | State | Due date |
|---|---|---|---|---|
| I20090720000582 | I | Colorectal Surgery (Proctology) | OK | TBD |
What to do next
- No action required while the due date shows TBD.
- Check the CMS Revalidation Lookup Tool periodically — CMS updates the list about every 60 days.
- Do not submit a revalidation application in PECOS until CMS publishes a concrete due date.
Prepare CMS-855 application → · Look up this NPI in PECOS → · Verify on CMS PECOS
Medicare Utilization (FFS)
Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·
Educational use only—not medical, billing, or legal advice.
Top Medicare procedures (2023) · refreshed 2026-05-27
| HCPCS | Description | Services | Beneficiaries | Medicare allowed |
|---|---|---|---|---|
| G0500 | Moderate sedation services provided by the same physician or other qualified health care professional performing a gastrointestinal endoscopic service that sedation supports, requiring the presence of an independent trained observer to assist in the monito | 88 | 87 | $0 |
| 45380 | Biopsy of large bowel using a flexible endoscope | 77 | 77 | $0 |
| 46600 | Diagnostic exam of anus using an endoscope | 57 | 49 | $0 |
| 45385 | Removal of polyps or growths of large bowel using an endoscope with mechanical snare | 56 | 56 | $0 |
| 99213 | Established patient office or other outpatient visit, 20-29 minutes | 41 | 32 | $0 |
Insurance plans in this area (ZIP 74104)
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Provider's Procedures
Group practice members
| Name | Specialty | State |
|---|---|---|
| - | OK | |
| - | OK | |
| - | OK | |
| Family Practice | OK | |
| - | OK | |
| - | OK | |
| - | OK | |
| - | OK | |
| Emergency Medicine | OK | |
| - | OK |
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